head to head
Alien vs. Predator (1994) asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Execution · Practiced Mastery
Capcom's arcade brawler pits Predators and marines against scripted xenomorph hordes.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Alien vs. Predator (1994) leans Execution (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Alien vs. Predator (1994) leans clearly harder on execution.
Alien vs. Predator (1994)
Crowd control, dashes, and charge attacks need tight hands.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Alien vs. Predator (1994) leans a little harder on reads, though the gap is small.
Alien vs. Predator (1994)
Xenomorph waves are scripted patterns, not adaptation.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Alien vs. Predator (1994)
Minor enemy spawn and drop randomness.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Alien vs. Predator (1994)
Character tech and wave-by-wave routing are fully learnable.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.